{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["material", "application", "machine or equipment", "concept or principle", "engineering feature", "enabling technology"], "input": "Waviness , weld cracks , porosity , and discontinuity of weld bead of a surface can be reduced by selection and optimising the parameters ; otherwise , irregular shapes will come during the manufacturing of thin or thick wall construction by Wire Arc Additive Manufacturing ."}
{"material": ["be"], "application": ["construction"], "machine or equipment": [], "concept or principle": ["weld bead", "surface", "parameters"], "engineering feature": ["Waviness", "weld"], "enabling technology": []}